/*
 * Copyright 2020 ACINQ SAS
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package fr.acinq.eclair.db

import fr.acinq.eclair.KamonExt
import kamon.Kamon
import kamon.metric.Metric

object Monitoring {

  object Metrics {
    val FileBackupCompleted: Metric.Counter = Kamon.counter("db.file-backup.completed")
    val FileBackupDuration: Metric.Timer = Kamon.timer("db.file-backup.duration")

    private val DbOperation: Metric.Counter = Kamon.counter("db.operation.execute")
    private val DbOperationDuration: Metric.Timer = Kamon.timer("db.operation.duration")

    def withMetrics[T](name: String, backend: String)(operation: => T): T = KamonExt.time(DbOperationDuration.withTag(Tags.DbOperation, name).withTag(Tags.DbBackend, backend)) {
      DbOperation.withTag(Tags.DbOperation, name).withTag(Tags.DbBackend, backend).increment()
      operation
    }
  }

  object Tags {
    val DbOperation = "operation"
    val DbBackend = "backend"

    object DbBackends {
      val Sqlite = "sqlite"
      val Postgres = "postgres"
    }
  }

}
